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Finding the Fourth Proportional to 546,916.60, 820,374.90 and 406,948.60

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Solution

The fourth proportional to 546,916.60, 820,374.90 and 406,948.60 is: 610,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,916.60 : 820,374.90 = 406,948.60 : x
  2. Step 2: Convert to fraction form
    546,916.60/820,374.90 = 406,948.60/x
  3. Step 3: Cross multiply
    546,916.60x = 820,374.90 × 406,948.60
  4. Step 4: Simplify right side
    546,916.60x = 333,850,417,030.14
  5. Step 5: Solve for x
    x = 333,850,417,030.14/546,916.60
  6. Step 6: Final answer
    x = 610,422.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.